Method of making bottles



May 3, R. J. VHELD I METHOD OF MAKING BOTTLES Filed Jan. 6, 1936 FIG. 2

FIG. I;

Patented May 3, 1938.

UNITED; STATES PATENT OFFICE mmmn or MAKING some Roy J. Held, Freeport, 111,

Application January 6 2 Claims.

.5 simple and eflicient method of making a metal bottle from a one piece metal blank and .a metal sleeve. More particularly, according toth'e present invention, the body portion of the bottle is formed from a unitary piece of. metal by extrud- 10 ing or drawing and spinning operations, and the metal sleeve having a tapping tool receiving part and preferably also a cap anchoring means is secured to said body in a fluid tight manner, preferably by a welding operation.

The invention further consists in the method and steps of the method hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawing: I

Fig. 1 is a vertical sectional view of a metal blank shown in plan in Fig. 2 which may be used in carrying out the method;

Fig. 3 is a vertical sectional view of the blank after an extruding, drawing, or spinning opera- 25 tion thereon;

Fig. 4 is a detail sectional view 01 one Iorm of cap-receiving sleeve;

Fig. 5 is a vertical sectional view after spinning operations on the structureshown in Fig. 3;

Fig. 6 is a detail sectional view of the neck portion of the finished bottle.

A. blank lof circular or other suitable form such as a ball or slug and of aluminum alloy, stainless steel or other suitable metal or suit- 35 ably surfaced metal is subjected to an extruding;

drawing, or spinning operation to form-a closed end tube 8 whose bottom wall 9 may be .relatively thicker than the sides of said. tube and preferably is u wardly concave, as shown in Fig.

-40 3 or otherwise strengthened from the original metal.

This closed end tube is then subjected at its upper end to a spinning operation to form the contracted breast wall I0 and the neck II or the 1936, Serial No. 57,680

bottle shown in Fig. 5, it being noted that the v wall In is thicker than the side wall I! but not always 'as thick or otherwise reinforced as the bottom wall 9.

A metal sleeve member I3 is formed to reinforce the neck and provide a zap-receiving bead ll and a tapping or filling tool receiving flange or recessed portion l5, its inside diameter being such as to closely fit the neck ll of the bottle to which it is applied as shown in Fig. 6 and then secured thereto in fluid tight manner preferably by a welded seam l6 between the top of the mouth and the inner wall of the bead and a welded seam ll joining the lower end of said tube with the outer wall of the bottle. This I sleeve member is preferably the same kind of metal as the bottle body and non-corrodible by unitary piece of metal by drawing the metal from a blank over a suitable die, spinning the upper end of said tube to form a contracted breast and a tubular neck, and welding one end of a tubular metal bottle cape-receiving member in fluid tight engagement with said neck atthe end of said neck and the other end of .said member to the outer end of said neck.

2. The method of forming a metal bottle which comprises forming a closed end tube from a unitary piece of metal by suitable drawing operations, spinning the upper end of said tube to form a contracted breast and a tubular neck, placing a tubular metal bottle cap-receiving member over said neck and welding said membe to said neck at the end of said .neck.

Y ROY' J. HELD. 1 

